package cn.chinaunicom.fast.common.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
  *
  * @ProjectName:
  * @Package:        com.springboot.cloud.common.web.utils
  * @ClassName:      SpringContextUtil
  * @Description:    用于从 IOC容器中获取 Bean
  * @Author:         wangjc
  * @CreateDate:     2020/4/7 0007 15:02
  * @UpdateUser:     更新者
  * @UpdateDate:     2020/4/7 0007 15:02
  * @UpdateRemark:   更新内容
  * @Version:        1.0
  */
@Component
public class SpringContextUtil implements ApplicationContextAware {
	private static ApplicationContext applicationContext;

	public SpringContextUtil(){
	}

	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		SpringContextUtil.applicationContext = applicationContext;
	}

	public static Object getBean(String name) {
		return applicationContext.getBean(name);
	}
	public static <T> T getBean(Class<T> clazz){
		return applicationContext.getBean(clazz);
	}

	public static <T> T getBean(String name, Class<T> requiredType) {
		return applicationContext.getBean(name, requiredType);
	}

	public static boolean containsBean(String name) {
		return applicationContext.containsBean(name);
	}

	public static boolean isSingleton(String name) {
		return applicationContext.isSingleton(name);
	}

	public static Class<?> getType(String name) {
		return applicationContext.getType(name);
	}

}